Latest Trends in Traffic Matrix Modeling and Its Application to Multilayer TE(Traffic Engineering and Multi-Layer Networking,<Special Section>Feature Topics on Latest Trends in Optical Networks)

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概要

• 論文の詳細を見る

• We survey traffic matrix models, whose elements represent the traffic demand between source-destination pair nodes. Modeling the traffic matrix is useful for multilayer Traffic Engineering (TE) in IP optical networks. Multilayer TE techniques make the network so designed flexible and reliable. This is because it allows reconfiguration of the virtual network topology (VNT), which consists of a set of several lower-layer (optical) paths and is provided to the higher layer, in response to fluctuations (diurnal) in traffic demand. It is, therefore, important to synthetically generate traffic matrices as close to the real ones as possible to maximize the performance of multilayer TE. We compare several models and clarify their applicability to VNT design and control. We find that it is difficult in practice to make an accurate traffic matrix with conventional schemes because of the high cost for data measurement and the complicated calculations involved. To overcome these problems, we newly introduce a simplified traffic matrix model that is practical; it well mirrors real networks. Next, this paper presents our developed server, the IP Optical TE server. It performs multilayer TE in IP optical networks. We evaluate the effectiveness of multilayer TE using our developed IP Optical server and the simplified traffic matrix. We confirm that multilayer TE offers significant CAPEX savings. Similarly, we demonstrate basic traffic control in IP optical networks, and confirm the dynamic control of the network and the feasibility of the IP Optical TE server.

• 社団法人電子情報通信学会の論文
• 2007-08-01

著者

• Shiomoto Kohei

  NTT Network Service Systems Laboratories, NTT Corporation

• OKI Eiji

  Dept. of Information and Communication Engineering, The University of Electro-Communications

• MIYAMURA Takashi

  NTT Network Service Systems Labs., NTT Corporation

• Shiomoto Kohei

  Ntt Network Service Systems Labs

• Shiomoto K

  Ntt Corp. Musashino‐shi Jpn

• Shiomoto Kohei

  Ntt Network Service Systems Laboratories Ntt Corporation

• Shiomoto Kohei

  Ntt Network Innovation Laboratories Ntt Corporation

• Miyamura Takashi

  Ntt Network Service Systems Laboratories Ntt Corporation

• Miyamura Takashi

  Ntt Network Service Laboratories Ntt Corporation

• Oki Eiji

  University of Electro-Communications

• Oki Eiji

  NTT Network Service Systems Laboratories, NTT Corporation

• HAYASHI Rie

  NTT Network Service Systems Laboratories, NTT Corporation

• SHIMAZAKI Daisaku

  NTT Network Service Systems Laboratories, NTT Corporation

• Hayashi Rie

  Ntt Network Serv. Systems Labs. Tokyo Jpn

• Shiomoto Kohei

  Network Service Systems Laboratories Ntt Corporation

• Oki E

  Department Of Information And Communication Engineering The University Of Electro-communications

• Oki Eiji

  Univ. Electro‐communications Chofu‐shi Jpn

• Oki Eiji

  Ntt Netwok Service Systems Laboratories

• Hayashi Rie

  Ntt Network Service Systems Labs. Ntt Corporation

• Shimazaki Daisaku

  Ntt Network Service Systems Laboratories Ntt Corporation

• Shimazaki Daisaku

  Ntt Network Service System Laboratories Ntt Corporation

• Oki Eiji

  Dept. Of Communication Engineering And Informatics The University Of Electro-communications

• SHIMAZAKI Daisaku

  NTT Network Service System Laboratories, NTT Corporation

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